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- W4313507934 endingPage "111531" @default.
- W4313507934 startingPage "111531" @default.
- W4313507934 abstract "Repairing articular cartilage defects remains a clinical challenge. 3D bioprinting scaffolds to repair articular cartilage defects is a research hotspot nowadays. In this study, we used silk fibroin (SF) and hydroxypropyl cellulose methacrylate (HPCMA) to prepare a porous SF-HPCMA bioink capable of 3D bioprinting for the first time, and based on this bioink, we successfully bioprinted SF-HPCMA scaffolds with excellent mechanical properties. Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and rheological properties tests showed that SF-HPCMA bioink had suitable porosity, pore size, more β-sheets, and excellent rheological properties. The mechanical property measurement results showed that the compression modulus of SF-HPCMA scaffolds reached that of normal cartilage. In vitro experiments demonstrated that SF-HPCMA scaffolds were highly biocompatible and could effectively promote the proliferation and chondrogenic differentiation of BMSCs, and that the cartilage tissue produced by in vitro culture was of higher quality. At 12 weeks after implantation of SF-HPCMA scaffolds into the rabbit knee cartilage defects, the SF-HPCMA scaffolds could effectively repair the articular cartilage defects. SF-HPCMA bioink and scaffolds are promising materials for repairing articular cartilage defects." @default.
- W4313507934 created "2023-01-06" @default.
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- W4313507934 date "2023-01-01" @default.
- W4313507934 modified "2023-09-26" @default.
- W4313507934 title "3D-bioprinted silk fibroin-hydroxypropyl cellulose methacrylate porous scaffold with optimized performance for repairing articular cartilage defects" @default.
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- W4313507934 doi "https://doi.org/10.1016/j.matdes.2022.111531" @default.
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